Occupational exposure at the Department of Nuclear Medicine as a work environment: A 19-year follow-up.

Background: This study assessed the radiation safety at Nuclear Medicine Department being a work environment. Ionizing radiation exposure of the employees in the last 19 years and the effects of legislative changes in radiological protection were analyzed.

Material/methods: All employees of the investigated department were regularly and individually monitored using chest badges equipped with Kodak film type 2.

Optimization of low-dose CT protocol in pediatric nuclear medicine imaging.

Unlabelled: This study was performed to find the optimal low-dose CT protocol for children being imaged on SPECT/CT scanners not equipped with automatic dose control. For SPECT/CT systems with manually adjustable x-ray tube voltage (kV) and anode current (mA), an optimized protocol makes it possible to minimize the dose to patients.

Methods: Using the 4-slice low-dose CT component of a commercially available SPECT/CT scanner, we compared the signals reaching the CT detector after radiation passes through objects of different sizes.

The application of SPECT/CT scintigraphy with MIBI-Tc⁹⁹(m) in the diagnosis of thyroid nodules - a preliminary report.

Introduction: Thyroid cancer diagnosis is based mainly on fine needle aspiration biopsy (FNAB) performed under ultrasonography guidance. Questions arise in cases of an inconclusive FNAB result - when there is no clear evidential data to support the existence of a malignant lesion or when there are any other reasons which make the decision process difficult, such as the patient's age or coexisting diseases. To clarify this issue the patient should be encouraged to undergo surgery treatment or to be followed up.